## Calculus 8th Edition

Published by Cengage

# Appendix D - Trigonometry - D Exercises: 22

#### Answer

The given angle is negative therefore, we will move clockwise from the x-axis as depicted in the figure:

#### Work Step by Step

Given: $-3 rad$=-171.9^{\circ}\$ The standard position of an angle occurs when we place its vertex at the origin of a coordinate system and its initial side on positive x-axis. A positive angle is obtained by rotating the initial side counterclockwise until it coincides with the terminal side. Likewise, negative angles are obtained by clockwise rotation . Since, the given angle is negative therefore, we will move clockwise from the x-axis as depicted in the figure:

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